Finding the Fourth Proportional to 515,055,541.24, 710,936,687.64 and 409,396,439.98
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Solution
The fourth proportional to 515,055,541.24, 710,936,687.64 and 409,396,439.98 is: 565,094,296.96
Step by Step Solution
- Step 1: Write the proportion equation
515,055,541.24 : 710,936,687.64 = 409,396,439.98 : x - Step 2: Convert to fraction form
515,055,541.24/710,936,687.64 = 409,396,439.98/x - Step 3: Cross multiply
515,055,541.24x = 710,936,687.64 × 409,396,439.98 - Step 4: Simplify right side
515,055,541.24x = 291,054,948,970,989,248 - Step 5: Solve for x
x = 291,054,948,970,989,248/515,055,541.24 - Step 6: Final answer
x = 565,094,296.96
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.